Dispersal Characteristics and Pathways of Japanese Glass Eel in the East Asian Continental Shelf
文献类型： 外文期刊
作者： Han, Yu-San 1 ; Hsiung, Kuan-Mei 2 ; Zhang, Heng 4 ; Chow, Lai-Yin 1 ; Tzeng, Wann-Nian 1 ; Shinoda, Akira 5 ; Yoshina 1 ;
作者机构： 1.Natl Taiwan Univ, Coll Life Sci, Inst Fisheries Sci, Taipei 10617, Taiwan
2.Univ Tokyo, Grad Sch Frontier Sci, Atmosphere & Ocean Res Inst, Chiba 2778564, Japan
3.Shanghai Jiao Tong Univ, Inst Oceanog, Shanghai 200240, Peoples R China
4.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China
5.Tokyo Med Univ, Dept Biol, Shinjuku Ku, Tokyo 1608402, Japan
6.Kitasato Univ, Sch Marine Biosci, Sagamihara, Kanagawa 2520373, Japan
7.Korea Inst Ocean Sci & Technol, Jeju Int Marine Sci Res & Logist Ctr, Jeju 63349, South Korea
8.Korea Fisheries Resources Agcy, Gunsan 54021, South Korea
9.Acad Sinica, Inst Earth Sci, Taipei 11529, Taiwan
关键词： Anguilla japonica; leptocephalus; glass eel; Kuroshio; North Equatorial Current (NEC); otolith daily increments
期刊名称：SUSTAINABILITY （ 影响因子：3.251； 五年影响因子：3.473 ）
ISSN： 2071-1050
年卷期： 2019 年 11 卷 9 期
页码：
收录情况： SCI
摘要： The Japanese eel Anguilla japonica is an important aquaculture fish species in the East Asian countries of Japan, China, Korea, and Taiwan. All glass eel fry are captured from the wild and understanding the recruitment patterns of the glass eel is important. The larvae of A. japonica are passively transported to the East Asian Continental Shelf by the North Equatorial Current, the Kuroshio, the Kuroshio intrusion currents, and coastal currents. In each location, recruitment time is diverse: It is November in Taiwan and April in the Yalu River. How the glass eels reach recruitment areas remains poorly understood. Here, we combine information from larval ages based on otolith increments, simulated drifting paths on the East Asian Continental Shelf, and main fishing seasons in each location of East Asia. We identify five main recruitment blocks: (1) The main Kuroshio, (2) The Taiwan Strait Warm Current, (3) The Taiwan Warm Current, (4) The Yellow Sea Warm Current and (5) The branch of Yellow Sea Warm Current. The counted age of the glass eels is significantly underestimated for the later recruits, possibly due to the cessation of the otolith edge growth under low water temperatures. This study clarifies the eel's larval characteristics and transport mechanisms in the East Asia Continental Shelf, providing important information for its recruitment dynamics in the marine stage.
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